Enabling Baked GI or Precomputed Realtime GI

By default, both Precomputed Realtime GI and Baked GI are enabled in Unity’s Lighting panel (Lighting>Scene). With both enabled, which technique is used can then be controlled by each light individually (Inspector>Light>Baking).

Using both Baked GI and Precomputed Realtime GI together in your scene can be detrimental to performance. A good practise is to ensure that only one system is used at a time, by disabling the other globally. This can be done by unchecking the box next to either Precomputed Realtime GI or Baked GI from Unity’s lighting panel (Lighting>Scene). Now only the checked option will be present in your scene, and any settings configured per-light will be overridden.